SAN FRANCISCO, CA - SEPTEMBER 17: An Occupy Wall Street protestor wears a button on his beard during a demonstration on September 17, 2012 in San Francisco, California. An estimated 100 Occupy Wall Street protestors staged a demonstration and march through downtown San Francisco to mark the one year anniversary of the birth of the Occupy movement. (Photo by Justin Sullivan/Getty Images)

SAN FRANCISCO (CBS SF) — Occupy protestors who gathered at Justin Herman Plaza in San Francisco overnight to celebrate the one-year anniversary of the Occupy protests avoided clashes with police.

A couple dozen protestors with tents remained at the plaza Tuesday morning.

San Francisco police gave protestors a 6 a.m. deadline to disassemble any tents pitched in the plaza Monday night, police said.

By 6 a.m. the protestors had voluntarily collapsed the tents and only a small group of police officers remained at the plaza.

A San Francisco police spokesman said the protestors were cooperative and took down tents that were pitched over night without assistance from police.

KCBS’ Chris Filippi and Holly Quan Report:

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